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nl80211: send interface after creation 

After a new virtual interface is created, reply
to userspace with a message detailing it so it
knows the new wdev identifier.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2012-06-16 00:05:37 +02:00
parent 84efbb84cf
commit 1c90f9d404
1 changed files with 15 additions and 2 deletions
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17
net/wireless/nl80211.c
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@ -1972,6 +1972,7 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct vif_params params;
struct wireless_dev *wdev;
struct sk_buff *msg;
int err;
enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
u32 flags;
@ -1998,14 +1999,20 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
return err;
}
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return -ENOMEM;
err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
&flags);
wdev = rdev->ops->add_virtual_intf(&rdev->wiphy,
nla_data(info->attrs[NL80211_ATTR_IFNAME]),
type, err ? NULL : &flags, &params);
if (IS_ERR(wdev))
if (IS_ERR(wdev)) {
nlmsg_free(msg);
return PTR_ERR(wdev);
}
if (type == NL80211_IFTYPE_MESH_POINT &&
info->attrs[NL80211_ATTR_MESH_ID]) {
@ -2019,7 +2026,13 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
wdev_unlock(wdev);
}
return 0;
if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
rdev, wdev) < 0) {
nlmsg_free(msg);
return -ENOBUFS;
}
return genlmsg_reply(msg, info);
}
static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)